The term 'not so tough' can be described by the crossword solutions of laxer (5 letters), FRAIL (5 letters), tenderer (8 letters), TAME (4 letters), and EASIER (6 letters). Laxer means to be less strict or severe, while FRAIL means to be weak or delicate. Tenderer is a comparative form of tender, which means gentle or kind. TAME means to be domesticated or subdued, and EASIER means to be simpler or less difficult. All of these words together describe something that is not so tough, meaning it is not strict, weak, difficult, or harsh.